JP6157085B2 - Curable silicone composition, cured product thereof, and optical semiconductor device - Google Patents
Curable silicone composition, cured product thereof, and optical semiconductor device Download PDFInfo
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- JP6157085B2 JP6157085B2 JP2012235184A JP2012235184A JP6157085B2 JP 6157085 B2 JP6157085 B2 JP 6157085B2 JP 2012235184 A JP2012235184 A JP 2012235184A JP 2012235184 A JP2012235184 A JP 2012235184A JP 6157085 B2 JP6157085 B2 JP 6157085B2
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- 229920001296 polysiloxane Polymers 0.000 title claims description 95
- 239000000203 mixture Substances 0.000 title claims description 78
- 230000003287 optical effect Effects 0.000 title claims description 33
- 239000004065 semiconductor Substances 0.000 title claims description 33
- 125000004432 carbon atom Chemical group C* 0.000 claims description 46
- 125000003342 alkenyl group Chemical group 0.000 claims description 28
- 125000000217 alkyl group Chemical group 0.000 claims description 23
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 22
- 229910052710 silicon Inorganic materials 0.000 claims description 22
- 125000003710 aryl alkyl group Chemical group 0.000 claims description 14
- 125000003118 aryl group Chemical group 0.000 claims description 12
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 12
- 239000003054 catalyst Substances 0.000 claims description 9
- 125000001624 naphthyl group Chemical group 0.000 claims description 6
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 4
- 238000006459 hydrosilylation reaction Methods 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- -1 methylphenylvinylsiloxane unit Chemical group 0.000 description 87
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 21
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 20
- 239000010703 silicon Substances 0.000 description 17
- 230000035699 permeability Effects 0.000 description 16
- 229910000077 silane Inorganic materials 0.000 description 14
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 14
- 239000000463 material Substances 0.000 description 13
- 125000003545 alkoxy group Chemical group 0.000 description 12
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 12
- 239000007789 gas Substances 0.000 description 11
- 229910052697 platinum Inorganic materials 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 9
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 7
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical compound [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 7
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 7
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 7
- 125000005843 halogen group Chemical group 0.000 description 7
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 7
- 238000003786 synthesis reaction Methods 0.000 description 7
- VMAWODUEPLAHOE-UHFFFAOYSA-N 2,4,6,8-tetrakis(ethenyl)-2,4,6,8-tetramethyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane Chemical compound C=C[Si]1(C)O[Si](C)(C=C)O[Si](C)(C=C)O[Si](C)(C=C)O1 VMAWODUEPLAHOE-UHFFFAOYSA-N 0.000 description 6
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 239000002253 acid Substances 0.000 description 6
- 125000001309 chloro group Chemical group Cl* 0.000 description 6
- 229920001577 copolymer Polymers 0.000 description 6
- 150000003961 organosilicon compounds Chemical class 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 5
- 125000004122 cyclic group Chemical group 0.000 description 5
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical group [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 229910052693 Europium Inorganic materials 0.000 description 4
- 229910004283 SiO 4 Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052801 chlorine Inorganic materials 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 125000003700 epoxy group Chemical group 0.000 description 4
- 239000003960 organic solvent Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 230000009257 reactivity Effects 0.000 description 4
- 150000004756 silanes Chemical class 0.000 description 4
- 229910052684 Cerium Inorganic materials 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical class OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 125000004423 acyloxy group Chemical group 0.000 description 3
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 125000005388 dimethylhydrogensiloxy group Chemical group 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 125000000962 organic group Chemical group 0.000 description 3
- 125000002572 propoxy group Chemical group [*]OC([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000003566 sealing material Substances 0.000 description 3
- 125000000094 2-phenylethyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])C([H])([H])* 0.000 description 2
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 2
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- BTHCBXJLLCHNMS-UHFFFAOYSA-N acetyloxysilicon Chemical compound CC(=O)O[Si] BTHCBXJLLCHNMS-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 2
- 125000004369 butenyl group Chemical group C(=CCC)* 0.000 description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- IJOOHPMOJXWVHK-UHFFFAOYSA-N chlorotrimethylsilane Chemical compound C[Si](C)(C)Cl IJOOHPMOJXWVHK-UHFFFAOYSA-N 0.000 description 2
- 238000006482 condensation reaction Methods 0.000 description 2
- 239000003431 cross linking reagent Substances 0.000 description 2
- 125000003493 decenyl group Chemical group [H]C([*])=C([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- BYLOHCRAPOSXLY-UHFFFAOYSA-N dichloro(diethyl)silane Chemical compound CC[Si](Cl)(Cl)CC BYLOHCRAPOSXLY-UHFFFAOYSA-N 0.000 description 2
- 239000004205 dimethyl polysiloxane Substances 0.000 description 2
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 125000005066 dodecenyl group Chemical group C(=CCCCCCCCCCC)* 0.000 description 2
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- KPWVUBSQUODFPP-UHFFFAOYSA-N ethenyl-(ethenyl-methyl-phenylsilyl)oxy-methyl-phenylsilane Chemical compound C=1C=CC=CC=1[Si](C)(C=C)O[Si](C)(C=C)C1=CC=CC=C1 KPWVUBSQUODFPP-UHFFFAOYSA-N 0.000 description 2
- BITPLIXHRASDQB-UHFFFAOYSA-N ethenyl-[ethenyl(dimethyl)silyl]oxy-dimethylsilane Chemical compound C=C[Si](C)(C)O[Si](C)(C)C=C BITPLIXHRASDQB-UHFFFAOYSA-N 0.000 description 2
- RCNRJBWHLARWRP-UHFFFAOYSA-N ethenyl-[ethenyl(dimethyl)silyl]oxy-dimethylsilane;platinum Chemical compound [Pt].C=C[Si](C)(C)O[Si](C)(C)C=C RCNRJBWHLARWRP-UHFFFAOYSA-N 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000002223 garnet Substances 0.000 description 2
- 125000003187 heptyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 125000006038 hexenyl group Chemical group 0.000 description 2
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 125000004998 naphthylethyl group Chemical group C1(=CC=CC2=CC=CC=C12)CC* 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 125000005187 nonenyl group Chemical group C(=CCCCCCCC)* 0.000 description 2
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 125000004365 octenyl group Chemical group C(=CCCCCCC)* 0.000 description 2
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 125000005375 organosiloxane group Chemical group 0.000 description 2
- 125000002255 pentenyl group Chemical group C(=CCCC)* 0.000 description 2
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 2
- 125000005561 phenanthryl group Chemical group 0.000 description 2
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 2
- 229920001843 polymethylhydrosiloxane Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 239000011253 protective coating Substances 0.000 description 2
- 125000001725 pyrenyl group Chemical group 0.000 description 2
- 239000002683 reaction inhibitor Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 125000005372 silanol group Chemical class 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 2
- LFQCEHFDDXELDD-UHFFFAOYSA-N tetramethyl orthosilicate Chemical compound CO[Si](OC)(OC)OC LFQCEHFDDXELDD-UHFFFAOYSA-N 0.000 description 2
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 description 2
- ZNOCGWVLWPVKAO-UHFFFAOYSA-N trimethoxy(phenyl)silane Chemical compound CO[Si](OC)(OC)C1=CC=CC=C1 ZNOCGWVLWPVKAO-UHFFFAOYSA-N 0.000 description 2
- 125000005065 undecenyl group Chemical group C(=CCCCCCCCCC)* 0.000 description 2
- 125000002948 undecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 125000004400 (C1-C12) alkyl group Chemical group 0.000 description 1
- 125000006736 (C6-C20) aryl group Chemical group 0.000 description 1
- IDXCKOANSQIPGX-UHFFFAOYSA-N (acetyloxy-ethenyl-methylsilyl) acetate Chemical compound CC(=O)O[Si](C)(C=C)OC(C)=O IDXCKOANSQIPGX-UHFFFAOYSA-N 0.000 description 1
- AWFOOUAPWFZKQK-UHFFFAOYSA-N (acetyloxy-methyl-phenylsilyl) acetate Chemical compound CC(=O)O[Si](C)(OC(C)=O)C1=CC=CC=C1 AWFOOUAPWFZKQK-UHFFFAOYSA-N 0.000 description 1
- HMVBQEAJQVQOTI-SOFGYWHQSA-N (e)-3,5-dimethylhex-3-en-1-yne Chemical compound CC(C)\C=C(/C)C#C HMVBQEAJQVQOTI-SOFGYWHQSA-N 0.000 description 1
- GRGVQLWQXHFRHO-AATRIKPKSA-N (e)-3-methylpent-3-en-1-yne Chemical compound C\C=C(/C)C#C GRGVQLWQXHFRHO-AATRIKPKSA-N 0.000 description 1
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
- RWNUSVWFHDHRCJ-UHFFFAOYSA-N 1-butoxypropan-2-ol Chemical compound CCCCOCC(C)O RWNUSVWFHDHRCJ-UHFFFAOYSA-N 0.000 description 1
- JOLQKTGDSGKSKJ-UHFFFAOYSA-N 1-ethoxypropan-2-ol Chemical compound CCOCC(C)O JOLQKTGDSGKSKJ-UHFFFAOYSA-N 0.000 description 1
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 description 1
- GQCZPFJGIXHZMB-UHFFFAOYSA-N 1-tert-Butoxy-2-propanol Chemical compound CC(O)COC(C)(C)C GQCZPFJGIXHZMB-UHFFFAOYSA-N 0.000 description 1
- RMZNKGBPQWTSFN-UHFFFAOYSA-N 2,2-diphenylethoxy(methyl)silane Chemical compound C[SiH2]OCC(C1=CC=CC=C1)C1=CC=CC=C1 RMZNKGBPQWTSFN-UHFFFAOYSA-N 0.000 description 1
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 1
- CEBKHWWANWSNTI-UHFFFAOYSA-N 2-methylbut-3-yn-2-ol Chemical compound CC(C)(O)C#C CEBKHWWANWSNTI-UHFFFAOYSA-N 0.000 description 1
- KSLSOBUAIFEGLT-UHFFFAOYSA-N 2-phenylbut-3-yn-2-ol Chemical compound C#CC(O)(C)C1=CC=CC=C1 KSLSOBUAIFEGLT-UHFFFAOYSA-N 0.000 description 1
- NECRQCBKTGZNMH-UHFFFAOYSA-N 3,5-dimethylhex-1-yn-3-ol Chemical compound CC(C)CC(C)(O)C#C NECRQCBKTGZNMH-UHFFFAOYSA-N 0.000 description 1
- LDMRLRNXHLPZJN-UHFFFAOYSA-N 3-propoxypropan-1-ol Chemical compound CCCOCCCO LDMRLRNXHLPZJN-UHFFFAOYSA-N 0.000 description 1
- SJECZPVISLOESU-UHFFFAOYSA-N 3-trimethoxysilylpropan-1-amine Chemical compound CO[Si](OC)(OC)CCCN SJECZPVISLOESU-UHFFFAOYSA-N 0.000 description 1
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- PRGQSGOSJPDWNL-UHFFFAOYSA-N C1(=CC=CC2=CC3=CC=CC=C3C=C12)[SiH2][SiH2][SiH3] Chemical compound C1(=CC=CC2=CC3=CC=CC=C3C=C12)[SiH2][SiH2][SiH3] PRGQSGOSJPDWNL-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 239000005046 Chlorosilane Substances 0.000 description 1
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 238000005481 NMR spectroscopy Methods 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910052771 Terbium Inorganic materials 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- BFJMRDORZHTMEZ-UHFFFAOYSA-N [acetyloxy(2-phenylethenyl)silyl] acetate Chemical compound C1(=CC=CC=C1)C=C[SiH](OC(C)=O)OC(C)=O BFJMRDORZHTMEZ-UHFFFAOYSA-N 0.000 description 1
- RQVFGTYFBUVGOP-UHFFFAOYSA-N [acetyloxy(dimethyl)silyl] acetate Chemical compound CC(=O)O[Si](C)(C)OC(C)=O RQVFGTYFBUVGOP-UHFFFAOYSA-N 0.000 description 1
- ZGKIFMFVVLNYAN-UHFFFAOYSA-N [diacetyloxy(anthracen-1-yl)silyl] acetate Chemical compound C1=CC=C2C=C3C([Si](OC(C)=O)(OC(C)=O)OC(=O)C)=CC=CC3=CC2=C1 ZGKIFMFVVLNYAN-UHFFFAOYSA-N 0.000 description 1
- TVJPBVNWVPUZBM-UHFFFAOYSA-N [diacetyloxy(methyl)silyl] acetate Chemical compound CC(=O)O[Si](C)(OC(C)=O)OC(C)=O TVJPBVNWVPUZBM-UHFFFAOYSA-N 0.000 description 1
- VLFKGWCMFMCFRM-UHFFFAOYSA-N [diacetyloxy(phenyl)silyl] acetate Chemical compound CC(=O)O[Si](OC(C)=O)(OC(C)=O)C1=CC=CC=C1 VLFKGWCMFMCFRM-UHFFFAOYSA-N 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- 125000003668 acetyloxy group Chemical group [H]C([H])([H])C(=O)O[*] 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 238000007259 addition reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/12—Polysiloxanes containing silicon bound to hydrogen
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J183/00—Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Adhesives based on derivatives of such polymers
- C09J183/04—Polysiloxanes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/85—Packages
- H10H20/852—Encapsulations
- H10H20/854—Encapsulations characterised by their material, e.g. epoxy or silicone resins
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/20—Polysiloxanes containing silicon bound to unsaturated aliphatic groups
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- H01L2224/31—Structure, shape, material or disposition of the layer connectors after the connecting process
- H01L2224/32—Structure, shape, material or disposition of the layer connectors after the connecting process of an individual layer connector
- H01L2224/321—Disposition
- H01L2224/32151—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/32221—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/32245—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
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- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/4805—Shape
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
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- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/481—Disposition
- H01L2224/48151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/48221—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/48245—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
- H01L2224/48247—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic connecting the wire to a bond pad of the item
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- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/73—Means for bonding being of different types provided for in two or more of groups H01L2224/10, H01L2224/18, H01L2224/26, H01L2224/34, H01L2224/42, H01L2224/50, H01L2224/63, H01L2224/71
- H01L2224/732—Location after the connecting process
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Description
本発明は、硬化性シリコーン組成物、この組成物を硬化してなる硬化物、およびこの組成物を用いてなる光半導体装置に関する。 The present invention relates to a curable silicone composition, a cured product obtained by curing the composition, and an optical semiconductor device using the composition.
硬化性シリコーン組成物は、発光ダイオード(LED)等の光半導体装置における光半導体素子の封止材あるいは保護コーティング材に使用されている。しかし、硬化性シリコーン組成物の硬化物はガス透過性が高いため、光の強度が強く、発熱が大きい高輝度LEDに用いた場合には、腐食性ガスによる、封止材の変色や、LEDの基板にメッキされた銀の腐食による輝度の低下が問題となっている。 The curable silicone composition is used as a sealing material or protective coating material for an optical semiconductor element in an optical semiconductor device such as a light emitting diode (LED). However, since the cured product of the curable silicone composition has high gas permeability, when used in a high-brightness LED with strong light intensity and large heat generation, discoloration of the sealing material due to corrosive gas, LED Decrease in brightness due to corrosion of silver plated on the substrate is a problem.
このため、ガス透過性の低い硬化物を形成する硬化性シリコーン組成物として、特許文献1には、メチルフェニルビニルシロキサン単位を有する分岐鎖状のオルガノポリシロキサン、オルガノハイドロジェンポリシロキサン、および付加反応用触媒からなる硬化性シリコーン組成物が提案されている。 Therefore, as a curable silicone composition that forms a cured product with low gas permeability, Patent Document 1 discloses a branched organopolysiloxane having a methylphenylvinylsiloxane unit, an organohydrogenpolysiloxane, and an addition reaction. There has been proposed a curable silicone composition comprising a catalyst for use.
しかし、このような硬化性シリコーン組成物は、粘度が高く、取扱作業性が乏しく、また、硬化反応が遅く、硬化反応を完結させるためには多大な時間とエネルギーが必要であるという課題がある。 However, such a curable silicone composition has a high viscosity, poor handling workability, a slow curing reaction, and a long time and energy required to complete the curing reaction. .
本発明の目的は、取扱作業性が優れ、高い反応性を有し、ガス透過性の低い硬化物を形成する硬化性シリコーン組成物を提供することにある。また、本発明の他の目的は、ガス透過性の低い硬化物を提供することにあり、さらには信頼性に優れる光半導体装置を提供することにある。 An object of the present invention is to provide a curable silicone composition that is excellent in handling workability, has high reactivity, and forms a cured product with low gas permeability. Another object of the present invention is to provide a cured product having low gas permeability, and further to provide an optical semiconductor device having excellent reliability.
本発明の硬化性シリコーン組成物は、
(A)平均単位式:
(R1R2R3SiO1/2)a(R4 2SiO2/2)b(R2SiO3/2)c
(式中、R1は炭素数1〜12のアルキル基であり、R2は同じかまたは異なる、炭素数6〜20のアリール基もしくは炭素数7〜20のアラルキル基であり、R3は炭素数2〜12のアルケニル基であり、R4は同じかまたは異なる、炭素数1〜12のアルキル基、炭素数2〜12のアルケニル基、もしくはフェニル基であり、a、b、およびcは、それぞれ、0.01≦a≦0.5、0≦b≦0.7、0.1≦c<0.9、かつa+b+c=1を満たす数である。)
で表され、一分子中に少なくとも2個のアルケニル基を有するオルガノポリシロキサン、
(B)一分子中に少なくとも2個のアルケニル基を有し、ケイ素原子結合水素原子を有さない直鎖状オルガノポリシロキサン(本組成物に対して、0〜70質量%)、
(C)一分子中に少なくとも2個のケイ素原子結合水素原子を有するオルガノポリシロキサンであって、式:
H(CH3)2SiO(C6H5)2SiOSi(CH3)2H
で表されるオルガノトリシロキサンを本成分中、少なくとも80質量%有するオルガノポリシロキサン{(A)成分中と(B)成分中のアルケニル基の合計1モルに対して、本成分中のケイ素原子結合水素原子が0.1〜5モルとなる量}、および
(D)有効量のヒドロシリル化反応用触媒
から少なくともなることを特徴とする。
The curable silicone composition of the present invention is
(A) Average unit formula:
(R 1 R 2 R 3 SiO 1/2 ) a (R 4 2 SiO 2/2 ) b (R 2 SiO 3/2 ) c
Wherein R 1 is an alkyl group having 1 to 12 carbon atoms, R 2 is the same or different, an aryl group having 6 to 20 carbon atoms or an aralkyl group having 7 to 20 carbon atoms, and R 3 is carbon. An alkenyl group having 2 to 12 carbon atoms, R 4 is the same or different, an alkyl group having 1 to 12 carbon atoms, an alkenyl group having 2 to 12 carbon atoms, or a phenyl group, and a, b, and c are (The numbers satisfy 0.01 ≦ a ≦ 0.5, 0 ≦ b ≦ 0.7, 0.1 ≦ c <0.9, and a + b + c = 1, respectively.)
An organopolysiloxane having at least two alkenyl groups in one molecule,
(B) a linear organopolysiloxane having at least two alkenyl groups in one molecule and having no silicon-bonded hydrogen atoms (0 to 70% by mass with respect to the present composition),
(C) an organopolysiloxane having at least two silicon-bonded hydrogen atoms in one molecule having the formula:
H (CH 3) 2 SiO ( C 6 H 5) 2 SiOSi (CH 3) 2 H
In this component, the organopolysiloxane having at least 80% by mass of the organotrisiloxane {the silicon atom bond in this component with respect to a total of 1 mole of alkenyl groups in component (A) and component (B) An amount of hydrogen atoms from 0.1 to 5 mol}, and (D) an effective amount of a catalyst for hydrosilylation reaction.
本発明の硬化物は、上記の硬化性シリコーン組成物を硬化してなることを特徴とする。 The cured product of the present invention is obtained by curing the above curable silicone composition.
本発明の光半導体装置は、上記の硬化性シリコーン組成物の硬化物により光半導体素子を封止してなることを特徴とする。 The optical semiconductor device of the present invention is characterized in that an optical semiconductor element is sealed with a cured product of the above curable silicone composition.
本発明の硬化性シリコーン組成物は、取扱作業性が優れ、高い反応性を有し、ガス透過性の低い硬化物を形成するという特徴がある。また、本発明の硬化物は、ガス透過性が低いという特徴がある。さらに、本発明の光半導体装置は、信頼性が優れるという特徴がある。 The curable silicone composition of the present invention is characterized in that it is excellent in handling workability, has high reactivity, and forms a cured product with low gas permeability. Further, the cured product of the present invention is characterized by low gas permeability. Furthermore, the optical semiconductor device of the present invention is characterized by excellent reliability.
はじめに、本発明の硬化性シリコーン組成物について詳細に説明する。
(A)成分のオルガノポリシロキサンは、本組成物の主剤であり、平均単位式:
(R1R2R3SiO1/2)a(R4 2SiO2/2)b(R2SiO3/2)c
で表され、一分子中に少なくとも2個のアルケニル基を有する。
First, the curable silicone composition of the present invention will be described in detail.
The organopolysiloxane of component (A) is the main component of the present composition, and has an average unit formula:
(R 1 R 2 R 3 SiO 1/2 ) a (R 4 2 SiO 2/2 ) b (R 2 SiO 3/2 ) c
And has at least two alkenyl groups in one molecule.
式中、R1は炭素数1〜12のアルキル基であり、メチル基、エチル基、プロピル基、ブチル基、ペンチル基、ヘキシル基、ヘプチル基、オクチル基、ノニル基、デシル基、ウンデシル基、ドデシル基が例示され、好ましくは、メチル基である。また、R2は同じかまたは異なる、炭素数6〜20のアリール基もしくは炭素数7〜20のアラルキル基である。R2のアリール基としては、フェニル基、トリル基、キシリル基、ナフチル基、アントラセニル基、フェナントリル基、ピレニル基、およびこれらのアリール基の水素原子をメチル基、エチル基等のアルキル基;メトキシ基、エトキシ基等のアルコキシ基;塩素原子、臭素原子等のハロゲン原子で置換した基が例示され、好ましくは、フェニル基、ナフチル基である。また、R2のアラルキル基としては、ベンジル基、フェネチル基、ナフチルエチル基、ナフチルプロピル基、アントラセニルエチル基、フェナントリルエチル基、ピレニルエチル基、およびこれらのアラルキル基の水素原子をメチル基、エチル基等のアルキル基;メトキシ基、エトキシ基等のアルコキシ基;塩素原子、臭素原子等のハロゲン原子で置換した基が例示される。また、R3は炭素数2〜12のアルケニル基であり、ビニル基、アリル基、ブテニル基、ペンテニル基、ヘキセニル基、ヘプテニル基、オクテニル基、ノネニル基、デセニル基、ウンデセニル基、ドデセニル基が例示され、好ましくは、ビニル基である。また、R4は同じかまたは異なる、炭素数1〜12のアルキル基、炭素数2〜12のアルケニル基、もしくはフェニル基である。R4のアルキル基としては、前記R1と同様の基が例示される。R4のアルケニル基としては、前記R3と同様の基が例示される。 In the formula, R 1 is an alkyl group having 1 to 12 carbon atoms, methyl group, ethyl group, propyl group, butyl group, pentyl group, hexyl group, heptyl group, octyl group, nonyl group, decyl group, undecyl group, A dodecyl group is illustrated, Preferably it is a methyl group. R 2 is the same or different and is an aryl group having 6 to 20 carbon atoms or an aralkyl group having 7 to 20 carbon atoms. Examples of the aryl group of R 2 include a phenyl group, a tolyl group, a xylyl group, a naphthyl group, an anthracenyl group, a phenanthryl group, a pyrenyl group, and an alkyl group such as a methyl group or an ethyl group; And alkoxy groups such as ethoxy group; groups substituted by halogen atoms such as chlorine atom and bromine atom are exemplified, and phenyl group and naphthyl group are preferable. Examples of the aralkyl group for R 2 include a benzyl group, a phenethyl group, a naphthylethyl group, a naphthylpropyl group, an anthracenylethyl group, a phenanthrylethyl group, a pyrenylethyl group, and a hydrogen atom of these aralkyl groups as a methyl group. And an alkyl group such as an ethyl group; an alkoxy group such as a methoxy group and an ethoxy group; and a group substituted with a halogen atom such as a chlorine atom and a bromine atom. R 3 is an alkenyl group having 2 to 12 carbon atoms, and examples thereof include vinyl, allyl, butenyl, pentenyl, hexenyl, heptenyl, octenyl, nonenyl, decenyl, undecenyl, and dodecenyl. Preferably, it is a vinyl group. R 4 is the same or different and is an alkyl group having 1 to 12 carbon atoms, an alkenyl group having 2 to 12 carbon atoms, or a phenyl group. Examples of the alkyl group for R 4 include the same groups as those described above for R 1 . Examples of the alkenyl group for R 4 include the same groups as those described above for R 3 .
また、式中、a、b、およびcは、それぞれ、0.01≦a≦0.5、0≦b≦0.7、0.1≦c<0.9、かつa+b+c=1を満たす数であり、好ましくは、0.05≦a≦0.5、0≦b≦0.5、0.4≦c<0.85、かつa+b+c=1を満たす数であり、更に好ましくは、0.05≦a≦0.4、0≦b≦0.4、0.45≦c<0.8、かつ、a+b+c=1を満たす数である。これは、aが上記範囲の下限以上であると、硬化物のガス透過性が低下するからであり、一方、上記範囲の上限以下であると、硬化物が十分な強度を有するからである。また、bが上記範囲の上限以下であると、硬化物の硬度が良好となり、信頼性が向上するからである。また、cが上記範囲の下限以上であると、硬化物の屈折率が良好となるからであり、一方、上記範囲の上限以下であると、硬化物の機械的特性が向上するからである。 In the formula, a, b, and c are numbers satisfying 0.01 ≦ a ≦ 0.5, 0 ≦ b ≦ 0.7, 0.1 ≦ c <0.9, and a + b + c = 1, respectively. Preferably, it is a number satisfying 0.05 ≦ a ≦ 0.5, 0 ≦ b ≦ 0.5, 0.4 ≦ c <0.85, and a + b + c = 1, and more preferably 0.5. 05 ≦ a ≦ 0.4, 0 ≦ b ≦ 0.4, 0.45 ≦ c <0.8, and a number satisfying a + b + c = 1. This is because if a is at least the lower limit of the above range, the gas permeability of the cured product will decrease, and if it is below the upper limit of the above range, the cured product will have sufficient strength. Moreover, it is because the hardness of hardened | cured material will become favorable that b is below the upper limit of the said range, and reliability will improve. Moreover, it is because the refractive index of hardened | cured material will become favorable when c is more than the minimum of the said range, and it is because the mechanical characteristics of hardened | cured material will improve that it is below the upper limit of the said range.
なお、(A)成分のオルガノポリシロキサンは、上記の平均単位式で表されるが、本発明の目的を損なわない範囲で、式:R1 3SiO1/2で表されるシロキサン単位、式:R1R2 2SiO1/2で表されるシロキサン単位、式:R1 2R2SiO1/2で表されるシロキサン単位、式:R1R3 2SiO1/2で表されるシロキサン単位、式:R1SiO3/2で表されるシロキサン単位、または式:SiO4/2で表されるシロキサン単位を有してもよい。なお、式中、R1は炭素数1〜12のアルキル基であり、前記と同様の基が例示される。また、式中、R2は炭素数6〜20のアリール基もしくは炭素数7〜20のアラルキル基であり、前記と同様の基が例示される。また、式中、R3は炭素数2〜12のアルケニル基であり、前記と同様の基が例示される。また、このオルガノポリシロキサンには、本発明の目的を損なわない範囲で、メトキシ基、エトキシ基、プロポキシ基等のケイ素原子結合アルコキシ基、あるいはケイ素原子結合水酸基を有していてもよい。 The organopolysiloxane of component (A) is represented by the above average unit formula, but within the range not impairing the object of the present invention, the siloxane unit represented by the formula: R 1 3 SiO 1/2 : Siloxane unit represented by R 1 R 2 2 SiO 1/2 , formula: siloxane unit represented by R 1 2 R 2 SiO 1/2 , represented by formula: R 1 R 3 2 SiO 1/2 It may have a siloxane unit, a siloxane unit represented by the formula: R 1 SiO 3/2 , or a siloxane unit represented by the formula: SiO 4/2 . In the formulas, R 1 is an alkyl group having 1 to 12 carbon atoms, the same groups as those exemplified. In the formula, R 2 is an aryl group having 6 to 20 carbon atoms or an aralkyl group having 7 to 20 carbon atoms, and examples thereof include the same groups as described above. In the above formula, R 3 is an alkenyl group having 2 to 12 carbon atoms, the same groups as those exemplified. The organopolysiloxane may have a silicon atom-bonded alkoxy group such as a methoxy group, an ethoxy group, or a propoxy group, or a silicon atom-bonded hydroxyl group as long as the object of the present invention is not impaired.
このようなオルガノポリシロキサンを調製する方法としては、例えば、一般式(I):
R2SiX3
で表されるシラン化合物、および一般式(II−1):
R1R2R3SiOSiR1R2R3
で表されるジシロキサンおよび/または一般式(II−2):
R1R2R3SiX
で表されるシラン化合物を、酸もしくはアルカリの存在下、加水分解・縮合反応させる方法が挙げられる。
As a method for preparing such an organopolysiloxane, for example, the general formula (I):
R 2 Six 3
And a general formula (II-1):
R 1 R 2 R 3 SiOSiR 1 R 2 R 3
Disiloxane and / or general formula (II-2):
R 1 R 2 R 3 SiX
The method of hydrolyzing and condensing the silane compound represented by these in presence of an acid or an alkali is mentioned.
一般式(I):
R2SiX3
で表されるシラン化合物は、オルガノポリシロキサンに、式:R2SiO3/2で表されるシロキサン単位を導入するための原料である。式中、R2は炭素数6〜20のアリール基または炭素数7〜20のアラルキル基であり、前記と同様の基が例示され、好ましくは、フェニル基またはナフチル基である。また、式中、Xはアルコキシ基、アシロキシ基、ハロゲン原子、または水酸基である。Xのアルコキシ基としては、メトキシ基、エトキシ基、プロポキシ基が例示される。また、Xのアシロキシ基としては、アセトキシ基が例示される。また、Xのハロゲン原子としては、塩素原子、臭素原子が例示される。
Formula (I):
R 2 Six 3
Is a raw material for introducing a siloxane unit represented by the formula: R 2 SiO 3/2 into an organopolysiloxane. In the formula, R 2 is an aryl group having 6 to 20 carbon atoms or an aralkyl group having 7 to 20 carbon atoms, and examples thereof are the same groups as described above, preferably a phenyl group or a naphthyl group. In the formula, X represents an alkoxy group, an acyloxy group, a halogen atom, or a hydroxyl group. Examples of the alkoxy group for X include a methoxy group, an ethoxy group, and a propoxy group. An example of the acyloxy group for X is an acetoxy group. Examples of the halogen atom for X include a chlorine atom and a bromine atom.
このようなシラン化合物としては、フェニルトリメトキシシラン、ナフチルトリメトキシシラン、アントラセニルトリメトキシシラン、フェナントリルトリメトキシシラン、ピレニルトリメトキシシラン、フェニルトリエトキシシラン、ナフチルトリエトキシシラン、アントラセニルトリエトキシシラン、フェナントリルトリエトキシシラン、ピレニルトリエトキシシラン等のアルコキシシラン;フェニルトリアセトキシシラン、ナフチルトリアセトキシシラン、アントラセニルトリアセトキシシラン、フェナントリルトリアセトキシシラン、ピレニルトリアセトキシシラン等のアシロキシシラン;フェニルトリクロロシラン、ナフチルトリクロロシラン、アントラセニルトリクロロシラン、フェナントリルトリクロロシラン、ピレニルトリクロロシラン等のハロシラン;フェニルトリヒドロキシシラン、ナフチルトリヒドロキシシラン、アントラセニルトリヒドロキシシラン、フェナントリルトリヒドロキシシラン、ピレニルトリヒドロキシシラン等のヒドロキシシランが例示される。 Examples of such silane compounds include phenyltrimethoxysilane, naphthyltrimethoxysilane, anthracenyltrimethoxysilane, phenanthryltrimethoxysilane, pyrenyltrimethoxysilane, phenyltriethoxysilane, naphthyltriethoxysilane, anthracenyltrisilane. silane, phenanthryl triethoxysilane, alkoxysilanes such as pyrenyl triethoxysilane; phenyl triacetoxy silane, naphthyltrimethoxysilane Li acetoxysilane, anthracenyl triacetoxy silane, phenanthryl triacetoxy silane, pyrenyl triacetoxy key bell run like Acyloxysilanes; phenyltrichlorosilane, naphthyltrichlorosilane, anthracenyltrichlorosilane, phenanthryltrichlorosilane, pyrenyltri Halosilanes such Roroshiran; phenyl trihydroxy silane, naphthyltrimethoxysilane polyhydroxy silane, anthracenyl trihydroxy silane, phenanthryl trihydroxy silane, hydroxy silanes such as pyrenyl trihydroxy silane is exemplified.
一般式(II−1):
R1R2R3SiOSiR1R2R3
で表されるジシロキサンは、オルガノポリシロキサンに、式:R1R2R3SiO1/2で表されるシロキサン単位を導入するための原料である。式中、R1は炭素数1〜12のアルキル基であり、前記と同様の基が例示され、好ましくは、メチル基である。また、式中、R2は炭素数6〜20のアリール基または炭素数7〜20のアラルキル基であり、前記と同様の基が例示され、好ましくは、フェニル基またはナフチル基である。また、式中、R3は炭素数2〜12のアルケニル基であり、前記と同様の基が例示され、好ましくは、ビニル基である。
Formula (II-1):
R 1 R 2 R 3 SiOSiR 1 R 2 R 3
Is a raw material for introducing a siloxane unit represented by the formula: R 1 R 2 R 3 SiO 1/2 into an organopolysiloxane. In the formula, R 1 is an alkyl group having 1 to 12 carbon atoms, and examples thereof are the same groups, preferably a methyl group. In the formula, R 2 is an aryl group having 6 to 20 carbon atoms or an aralkyl group having 7 to 20 carbon atoms, and examples thereof are the same groups as those described above, preferably a phenyl group or a naphthyl group. In the formula, R 3 is an alkenyl group having 2 to 12 carbon atoms, and examples thereof are the same groups as described above, and is preferably a vinyl group.
このようなジシロキサンとしては、1,3−ジビニル−1,3−ジフェニル−1,3−ジメチルジシロキサンが挙げられる。 Examples of such disiloxane include 1,3-divinyl-1,3-diphenyl-1,3-dimethyldisiloxane.
一般式(II−2):
R1R2R3SiX
で表されるシラン化合物も、オルガノポリシロキサンに、式:R1R2R3SiO1/2で表されるシロキサン単位を導入するための原料である。式中、R1は炭素数1〜12のアルキル基であり、前記と同様の基が例示され、好ましくは、メチル基である。また、式中、R2は炭素数6〜20のアリール基または炭素数7〜20のアラルキル基であり、前記と同様の基が例示され、好ましくは、フェニル基またはナフチル基である。また、式中、R3は炭素数2〜12のアルケニル基であり、前記と同様の基が例示され、好ましくは、ビニル基である。また、式中、Xはアルコキシ基、アシロキシ基、ハロゲン原子、または水酸基であり、前記と同様の基が例示される。
General formula (II-2):
R 1 R 2 R 3 SiX
Is also a raw material for introducing a siloxane unit represented by the formula: R 1 R 2 R 3 SiO 1/2 into the organopolysiloxane. In the formula, R 1 is an alkyl group having 1 to 12 carbon atoms, and examples thereof are the same groups, preferably a methyl group. In the formula, R 2 is an aryl group having 6 to 20 carbon atoms or an aralkyl group having 7 to 20 carbon atoms, and examples thereof are the same groups as those described above, preferably a phenyl group or a naphthyl group. In the formula, R 3 is an alkenyl group having 2 to 12 carbon atoms, and examples thereof are the same groups as described above, and is preferably a vinyl group. In the formula, X represents an alkoxy group, an acyloxy group, a halogen atom, or a hydroxyl group, and examples thereof include the same groups as described above.
このようなシラン化合物としては、メチルフェニルビニルメトキシシラン、メチルフェニルビニルエトキシシラン等のアルコキシシラン;メチルフェニルビニルアセトキシシラン等のアセトキシシラン;メチルフェニルビニルクロロシラン等のクロロシラン;メチルフェニルビニルヒドロキシシラン等のヒドロキシシランが例示される。 Examples of such silane compounds include alkoxysilanes such as methylphenylvinylmethoxysilane and methylphenylvinylethoxysilane; acetoxysilanes such as methylphenylvinylacetoxysilane; chlorosilanes such as methylphenylvinylchlorosilane; hydroxy such as methylphenylvinylhydroxysilane. Silane is exemplified.
上記の調製方法では、必要に応じて、オルガノポリシロキサンに、式:R4 2SiO2/2で表されるシロキサン単位を導入するためのシラン化合物もしくは環状シリコーン化合物、または、式:R1 3SiO1/2で表されるシロキサン単位、式:R1R2 2SiO1/2で表されるシロキサン単位、式:R1 2R2SiO1/2で表されるシロキサン単位、式:R1R3 2SiO1/2で表されるシロキサン単位、式:R1SiO3/2で表されるシロキサン単位、もしくは式:SiO4/2で表されるシロキサン単位を導入するためのシラン化合物もしくはシランオリゴマーを反応させることができる。式中、R1は炭素数1〜12のアルキル基であり、前記と同様の基が例示される。また、式中、R2は炭素数6〜20のアリール基または炭素数7〜20のアラルキル基であり、前記と同様の基が例示される。また、式中、R3は炭素数2〜12のアルケニル基であり、前記と同様の基が例示される。また、式中、R4は同じかまたは異なる、炭素数1〜12のアルキル基、炭素数2〜12のアルケニル基、もしくはフェニル基であり、前記と同様の基が例示される。 In the above preparation method, if necessary, a silane compound or a cyclic silicone compound for introducing a siloxane unit represented by the formula: R 4 2 SiO 2/2 into the organopolysiloxane, or a formula: R 1 3 Siloxane unit represented by SiO 1/2 , formula: R 1 R 2 2 Siloxane unit represented by SiO 1/2 , formula: R 1 2 R 2 Siloxane unit represented by SiO 1/2 , formula: R Silane compound for introducing a siloxane unit represented by 1 R 3 2 SiO 1/2 , a siloxane unit represented by formula: R 1 SiO 3/2 , or a siloxane unit represented by formula: SiO 4/2 Alternatively, a silane oligomer can be reacted. In the formula, R 1 is an alkyl group having 1 to 12 carbon atoms, and examples thereof include the same groups as described above. In the formula, R 2 is an aryl group having 6 to 20 carbon atoms or an aralkyl group having 7 to 20 carbon atoms, and examples thereof include the same groups as described above. In the above formula, R 3 is an alkenyl group having 2 to 12 carbon atoms, the same groups as those exemplified. In the formula, R 4 is the same or different, an alkyl group having 1 to 12 carbon atoms, an alkenyl group having 2 to 12 carbon atoms, or a phenyl group, and examples thereof are the same groups as described above.
このようなシラン化合物としては、ジメチルジメトキシシラン、ジメチルジエトキシシラン、ジエチルジメトキシシラン、ジエチルジエトキシシラン、メチルフェニルジメトキシシラン、メチルフェニルジエトキシシラン、ジフェニルジメトキシシラン、ジフェニルジエトキシシラン、メチルビニルジメトキシシラン、メチルビニルジエトキシシラン、フェニルビニルジメトキシシラン、フェニルビニルジエトキシシラン、トリメチルメトキシシラン、トリメチルエトキシシラン、メチルジフェニルメトキシシラン、メチルジフェニルエトキシシラン、メチルトリメトキシシラン、テトラメトキシシラン、テトラエトキシシラン等のアルコキシシラン;ジメチルジアセトキシシラン、メチルフェニルジアセトキシシラン、ジフェニルジアセトキシシラン、メチルビニルジアセトキシシラン、フェニルビニルジアセトキシシラン、トリメチルアセトキシシラン、メチルジフェニルアセトキシシラン、メチルトリアセトキシシラン、テトラアセトキシシラン等のアセトキシシラン;ジメチルジクロロシラン、ジエチルジクロロシラン、メチルフェニルジクロロシラン、ジフェニルジクロロシラン、メチルビニルジクロロシラン、フェニルビニルジクロロシラン、トリメチルクロロシラン、メチルジフェニルクロロシラン、メチルトリクロロシラン、テトラクロロシラン等のハロシラン;ジメチルジヒドロキシシラン、ジエチルジヒドロキシシラン、メチルフェニルジヒドロキシシラン、ジフェニルジヒドロキシシラン、メチルビニルジヒドロキシシラン、トリメチルヒドロキシシラン、メチルジフェニルヒドロキシシラン、メチルトリヒドロキシシラン等のヒドロキシシランが例示される。また、このような環状シリコーン化合物としては、環状ジメチルシロキサンオリゴマー、環状フェニルメチルシロキサンオリゴマー、環状ジフェニルシロキサンオリゴマーが例示される。さらに、シランオリゴマーとしては、テトラメトキシシランの部分加水分解物、テトラエトキシシランの部分加水分解物が例示される。 Examples of such silane compounds include dimethyldimethoxysilane, dimethyldiethoxysilane, diethyldimethoxysilane, diethyldiethoxysilane, methylphenyldimethoxysilane, methylphenyldiethoxysilane, diphenyldimethoxysilane, diphenyldiethoxysilane, and methylvinyldimethoxysilane. , Methylvinyldiethoxysilane, phenylvinyldimethoxysilane, phenylvinyldiethoxysilane, trimethylmethoxysilane, trimethylethoxysilane, methyldiphenylmethoxysilane, methyldiphenylethoxysilane, methyltrimethoxysilane, tetramethoxysilane, tetraethoxysilane, etc. Alkoxysilane; dimethyldiacetoxysilane, methylphenyldiacetoxysilane, diphenyldiacetate Acetoxysilane such as silane, methylvinyldiacetoxysilane, phenylvinyldiacetoxysilane, trimethylacetoxysilane, methyldiphenylacetoxysilane, methyltriacetoxysilane, tetraacetoxysilane; dimethyldichlorosilane, diethyldichlorosilane, methylphenyldichlorosilane, diphenyl Halosilanes such as dichlorosilane, methylvinyldichlorosilane, phenylvinyldichlorosilane, trimethylchlorosilane, methyldiphenylchlorosilane, methyltrichlorosilane, tetrachlorosilane; dimethyldihydroxysilane, diethyldihydroxysilane, methylphenyldihydroxysilane, diphenyldihydroxysilane, methylvinyldihydroxy Silane, trimethylhydroxysilane, Chill diphenyl hydroxy silanes, hydroxy silanes such as methyl trihydroxy silane is exemplified. Examples of such cyclic silicone compounds include cyclic dimethylsiloxane oligomers, cyclic phenylmethylsiloxane oligomers, and cyclic diphenylsiloxane oligomers. Furthermore, as a silane oligomer, the partial hydrolyzate of tetramethoxysilane and the partial hydrolyzate of tetraethoxysilane are illustrated.
上記の調製方法では、シラン化合物(I)、およびジシロキサン(II−1)および/またはシラン化合物(II−2)、さらに必要に応じて、その他のシラン化合物、環状シリコーン化合物、あるいはシランオリゴマーを、酸もしくはアルカリの存在下、加水分解・縮合反応させることを特徴とする。 In the above preparation method, silane compound (I), disiloxane (II-1) and / or silane compound (II-2), and, if necessary, other silane compound, cyclic silicone compound, or silane oligomer are added. The hydrolysis / condensation reaction is carried out in the presence of an acid or an alkali.
使用できる酸としては、塩酸、酢酸、蟻酸、硝酸、シュウ酸、硫酸、リン酸、ポリリン酸、多価カルボン酸、トリフルオロメタンスルホン酸、イオン交換樹脂が例示される。また、使用できるアルカリとしては、水酸化カリウム、水酸化ナトリウム等の無機アルカリ;トリエチルアミン、ジエチルアミン、モノエタノールアミン、ジエタノールアミン、トリエタノールアミン、アンモニア水、テトラメチルアンモニウムハイドロオキサイド、アミノ基を有するアルコキシラン、アミノプロピルトリメトキシシラン等の有機塩基化合物が例示される。 Examples of the acid that can be used include hydrochloric acid, acetic acid, formic acid, nitric acid, oxalic acid, sulfuric acid, phosphoric acid, polyphosphoric acid, polyvalent carboxylic acid, trifluoromethanesulfonic acid, and ion exchange resin. Examples of alkalis that can be used include inorganic alkalis such as potassium hydroxide and sodium hydroxide; triethylamine, diethylamine, monoethanolamine, diethanolamine, triethanolamine, aqueous ammonia, tetramethylammonium hydroxide, alkoxysilane having an amino group, Examples include organic base compounds such as aminopropyltrimethoxysilane.
また、上記の調製方法において、有機溶剤を使用することができる。使用できる有機溶剤としては、エーテル類、ケトン類、アセテート類、芳香族あるいは脂肪族炭化水素、γ−ブチロラクトン、およびこれらの2種以上の混合物が例示される。好ましい有機溶剤としては、プロピレングリコールモノメチルエーテル、プロピレングリコールモノメチルエーテルアセテート、プロピレングリコールモノエチルエーテル、プロピレングリコールモノプロピルエーテル、プロピレングリコールモノブチルエーテル、プロピレングリコールモノ−t−ブチルエーテル、γ−ブチロラクトン、トルエン、キシレンが例示される。 In the above preparation method, an organic solvent can be used. Examples of the organic solvent that can be used include ethers, ketones, acetates, aromatic or aliphatic hydrocarbons, γ-butyrolactone, and mixtures of two or more thereof. Preferred organic solvents include propylene glycol monomethyl ether, propylene glycol monomethyl ether acetate, propylene glycol monoethyl ether, propylene glycol monopropyl ether, propylene glycol monobutyl ether, propylene glycol mono-t-butyl ether, γ-butyrolactone, toluene and xylene. Illustrated.
上記の調製方法では、上記各成分の加水分解・縮合反応を促進するため、水、あるいは水とアルコールの混合液を添加することが好ましい。このアルコールとしては、メタノール、エタノールが好ましい。この反応は、加熱により促進され、有機溶媒を使用する場合には、その還流温度で反応を行うことが好ましい。 In the above preparation method, it is preferable to add water or a mixture of water and alcohol in order to promote the hydrolysis / condensation reaction of the above components. As this alcohol, methanol and ethanol are preferable. This reaction is accelerated by heating, and when an organic solvent is used, the reaction is preferably performed at the reflux temperature.
(B)成分は、硬化物に柔軟性、伸張性、可撓性を付与するための任意の成分であり、一分子中に少なくとも2個のアルケニル基を有し、ケイ素原子結合水素原子を有さない直鎖状のオルガノポリシロキサンである。(B)成分中のアルケニル基としては、ビニル基、アリル基、ブテニル基、ペンテニル基、ヘキセニル基、ヘプテニル基、オクテニル基、ノネニル基、デセニル基、ウンデセニル基、ドデセニル基等の炭素数2〜12のアルケニル基が例示され、好ましくは、ビニル基である。(B)成分中のアルケニル基以外のケイ素原子に結合する基としては、メチル基、エチル基、プロピル基、ブチル基、ペンチル基、ヘキシル基、ヘプチル基、オクチル基、ノニル基、デシル基、ウンデシル基、ドデシル基等の炭素数1〜12のアルキル基;フェニル基、トリル基、キシリル基、ナフチル基、アントラセニル基、フェナントリル基、ピレニル基、およびこれらのアリール基の水素原子をメチル基、エチル基等のアルキル基;メトキシ基、エトキシ基等のアルコキシ基;塩素原子、臭素原子等のハロゲン原子で置換した基等の炭素数6〜20のアリール基;ベンジル基、フェネチル基、ナフチルエチル基、ナフチルプロピル基、アントラセニルエチル基、フェナントリルエチル基、ピレニルエチル基、およびこれらのアラルキル基の水素原子をメチル基、エチル基等のアルキル基;メトキシ基、エトキシ基等のアルコキシ基;塩素原子、臭素原子等のハロゲン原子で置換した基等の炭素数7〜20のアラルキル基;またはクロロメチル基、3,3,3−トリフルオロプロピル基等の炭素数1〜12のハロゲン化アルキル基が例示され、好ましくは、メチル基、フェニル基である。 Component (B) is an optional component for imparting flexibility, extensibility, and flexibility to the cured product, and has at least two alkenyl groups in one molecule and silicon-bonded hydrogen atoms. It is a linear organopolysiloxane that does not. (B) As an alkenyl group in a component, it is C2-C12, such as a vinyl group, an allyl group, a butenyl group, a pentenyl group, a hexenyl group, a heptenyl group, an octenyl group, a nonenyl group, a decenyl group, an undecenyl group, a dodecenyl group The alkenyl group is exemplified, and a vinyl group is preferable. (B) As a group couple | bonded with silicon atoms other than the alkenyl group in a component, methyl group, ethyl group, propyl group, butyl group, pentyl group, hexyl group, heptyl group, octyl group, nonyl group, decyl group, undecyl Group, an alkyl group having 1 to 12 carbon atoms, such as dodecyl group; Alkyl groups such as methoxy groups, ethoxy groups, etc .; aryl groups having 6 to 20 carbon atoms such as groups substituted by halogen atoms such as chlorine atoms and bromine atoms; benzyl groups, phenethyl groups, naphthylethyl groups, naphthyl Propyl, anthracenylethyl, phenanthrylethyl, pyrenylethyl, and their aralkyls An alkyl group such as a methyl group or an ethyl group; an alkoxy group such as a methoxy group or an ethoxy group; an aralkyl group having 7 to 20 carbon atoms such as a group substituted with a halogen atom such as a chlorine atom or a bromine atom; or chloro Examples thereof include a halogenated alkyl group having 1 to 12 carbon atoms such as a methyl group and a 3,3,3-trifluoropropyl group, preferably a methyl group and a phenyl group.
このような(B)成分としては、分子鎖両末端トリメチルシロキシ基封鎖ジメチルシロキサン・メチルビニルシロキサン共重合体、分子鎖両末端トリメチルシロキシ基封鎖メチルビニルポリシロキサン、分子鎖両末端トリメチルシロキシ基封鎖ジメチルシロキサン・メチルビニルシロキサン・メチルフェニルシロキサン共重合体、分子鎖両末端ジメチルビニルシロキシ基封鎖ジメチルポリシロキサン、分子鎖両末端ジメチルビニルシロキシ基封鎖メチルビニルポリシロキサン、分子鎖両末端ジメチルビニルシロキシ基封鎖ジメチルシロキサン・メチルビニルシロキサン共重合体、分子鎖両末端ジメチルビニルシロキシ基封鎖ジメチルシロキサン・メチルビニルシロキサン・メチルフェニルシロキサン共重合体、およびこれらのオルガノポリシロキサンの二種以上の混合物が例示される。 Examples of such a component (B) include a trimethylsiloxy group-capped dimethylsiloxane / methylvinylsiloxane copolymer with both molecular chain terminals, a trimethylsiloxy group-capped methylvinylpolysiloxane with both molecular chain terminals, and a trimethylsiloxy group-capped dimethyl group with both molecular chains. Siloxane / methylvinylsiloxane / methylphenylsiloxane copolymer, dimethylpolysiloxane blocked with dimethylvinylsiloxy group at both ends of molecular chain, dimethylvinylsiloxy group-blocked methylvinylpolysiloxane with molecular chain at both ends, dimethylvinylsiloxy group-blocked dimethyl with molecular chain at both ends Siloxane / methylvinylsiloxane copolymer, dimethylvinylsiloxy group-blocked dimethylsiloxane / methylvinylsiloxane / methylphenylsiloxane copolymer with both ends of the molecular chain, and organopolysiloxanes thereof. Mixtures of two or more hexane and the like.
本組成物において、(B)成分の含有量は、本組成物に対して、0〜70質量%の範囲内であり、好ましくは、0〜50質量%の範囲内であり、特に好ましくは、0〜40質量%の範囲内である。これは、(B)成分の含有量が上記範囲の上限以下であると、硬化物のガス透過性を高めることなく、硬化物に柔軟性、伸張性、可撓性を付与することができ、ひいては、本組成物を用いて作製した光半導体装置の信頼性を向上できるからである。 In the present composition, the content of the component (B) is in the range of 0 to 70% by mass, preferably in the range of 0 to 50% by mass, particularly preferably, relative to the present composition. It is in the range of 0 to 40% by mass. When the content of the component (B) is below the upper limit of the above range, the cured product can be given flexibility, extensibility, and flexibility without increasing the gas permeability of the cured product. As a result, it is because the reliability of the optical semiconductor device produced using this composition can be improved.
(C)成分は、本組成物の架橋剤であり、一分子中に少なくとも2個のケイ素原子結合水素原子を有するオルガノポリシロキサンであって、式:
H(CH3)2SiO(C6H5)2SiOSi(CH3)2H
で表されるオルガノトリシロキサンを本成分中、少なくとも80質量%有するオルガノポリシロキサンである。これは、上記のオルガノトリシロキサンを架橋剤として用いると、上記(A)成分に対して、良好な反応性を有し、本組成物を速やかに硬化することができるからである。また、上記のようなオルガノトリシロキサンは、本組成物の粘度を低下させ、本組成物の取扱作業性を向上することができる。
Component (C) is a cross-linking agent of the present composition, which is an organopolysiloxane having at least two silicon-bonded hydrogen atoms in one molecule, and has the formula:
H (CH 3) 2 SiO ( C 6 H 5) 2 SiOSi (CH 3) 2 H
Is an organopolysiloxane having at least 80% by mass in the present component. This is because when the above-mentioned organotrisiloxane is used as a crosslinking agent, it has good reactivity with respect to the component (A) and can quickly cure the present composition. Moreover, the above organotrisiloxane can reduce the viscosity of this composition and can improve the workability | operativity of this composition.
(C)成分は上記のオルガノトリシロキサンを少なくとも80質量%有するものであり、その他のオルガノポリシロキサンは、一分子中に少なくとも2個のケイ素原子結合水素原子を有するものであれば特に限定されない。このようなオルガノポリシロキサンとしては、直鎖状、分岐状、環状、網状、一部分岐を有する直鎖状等の分子構造を有するものが例示される。また、このオルガノポリシロキサン中のケイ素原子に結合するその他の基としては、炭素数1〜12のアルキル基、炭素数6〜20のアリール基、炭素数7〜20のアラルキル基、および炭素数1〜12のハロゲン化アルキル基が例示される。このような基としては、それぞれ前記と同様の基が例示され、好ましくは、メチル基、フェニル基である。 The component (C) has at least 80% by mass of the above organotrisiloxane, and the other organopolysiloxane is not particularly limited as long as it has at least two silicon atom-bonded hydrogen atoms in one molecule. Examples of such an organopolysiloxane include those having a molecular structure such as linear, branched, cyclic, network, partially branched linear. Moreover, as other group couple | bonded with the silicon atom in this organopolysiloxane, a C1-C12 alkyl group, a C6-C20 aryl group, a C7-C20 aralkyl group, and C1-C1 Illustrative are ˜12 halogenated alkyl groups. Examples of such groups include the same groups as those described above, preferably a methyl group and a phenyl group.
その他のオルガノポリシロキサンとしては、分子鎖両末端トリメチルシロキシ基封鎖メチルハイドロジェンポリシロキサン、分子鎖両末端トリメチルシロキシ基封鎖ジメチルシロキサン・メチルハイドロジェンシロキサン共重合体、分子鎖両末端トリメチルシロキシ基封鎖ジメチルシロキサン・メチルハイドロジェンシロキサン・メチルフェニルシロキサン共重合体、分子鎖両末端ジメチルハイドロジェンシロキシ基封鎖ジメチルポリシロキサン、分子鎖両末端ジメチルハイドロジェンシロキシ基封鎖ジメチルシロキサン・メチルフェニルシロキサン共重合体、分子鎖両末端ジメチルハイドロジェンシロキシ基封鎖メチルフェニルポリシロキサン、一般式:R'3SiO1/2で表されるシロキサン単位と一般式:R'2HSiO1/2で表されるシロキサン単位と式:SiO4/2で表されるシロキサン単位からなるオルガノポリシロキサン共重合体、一般式:R'2HSiO1/2で表されるシロキサン単位と式:SiO4/2で表されるシロキサン単位からなるオルガノポリシロキサン共重合体、一般式:R'HSiO2/2で表されるシロキサン単位と一般式:R'SiO3/2で表されるシロキサン単位または式:HSiO3/2で表されるシロキサン単位からなるオルガノポリシロキサン共重合体、およびこれらのオルガノポリシロキサンの二種以上の混合物が例示される。なお、式中のR'は炭素数1〜12のアルキル基、炭素数6〜20のアリール基、炭素数7〜20のアラルキル基、または炭素数1〜12のハロゲン化アルキル基であり、それぞれ前記と同様の基が例示される。 Other organopolysiloxanes include trimethylsiloxy group-capped methylhydrogen polysiloxane with molecular chain at both ends, trimethylsiloxy group-capped dimethylsiloxane / methylhydrogensiloxane copolymer with molecular chain at both ends, and trimethylsiloxy group-capped dimethyl with molecular chain at both ends. Siloxane / Methylhydrogensiloxane / Methylphenylsiloxane copolymer, dimethylpolysiloxane blocked with dimethylhydrogensiloxy group at both ends of molecular chain, dimethylsiloxane / methylphenylsiloxane copolymer with dimethylhydrogensiloxy group blocked at both ends of molecular chain, molecular chain Both-end dimethylhydrogensiloxy group-blocked methylphenylpolysiloxane, represented by the general formula: R ′ 3 SiO 1/2 and the general formula: R ′ 2 HSiO 1/2 An organopolysiloxane copolymer comprising a siloxane unit represented by the formula: SiO 4/2 and a siloxane unit represented by the general formula: R ′ 2 HSiO 1/2 and a formula represented by SiO 4/2 An organopolysiloxane copolymer composed of siloxane units, a siloxane unit represented by the general formula: R′HSiO 2/2 and a siloxane unit represented by the general formula: R′SiO 3/2 or a formula: HSiO 3 / And an organopolysiloxane copolymer comprising siloxane units represented by 2 and a mixture of two or more of these organopolysiloxanes. R ′ in the formula is an alkyl group having 1 to 12 carbon atoms, an aryl group having 6 to 20 carbon atoms, an aralkyl group having 7 to 20 carbon atoms, or a halogenated alkyl group having 1 to 12 carbon atoms, Examples are the same as those described above.
本組成物において、(C)成分の含有量は、(A)成分中および(B)成分中のアルケニル基の合計1モルに対して、本成分中のケイ素原子結合水素原子が0.1〜5モルの範囲内となる量であり、好ましくは、0.5〜2モルの範囲内となる量である。これは、(C)成分の含有量が上記範囲の下限以上であると、組成物が十分に硬化するからであり、一方、上記範囲の上限以下であると、硬化物の耐熱性が向上し、ひいては、本組成物を用いて作製した光半導体装置の信頼性が向上するからである。 In this composition, the content of component (C) is such that the silicon-bonded hydrogen atoms in this component are 0.1 to 0.1 mol in total for 1 mol of alkenyl groups in component (A) and component (B). The amount is in the range of 5 moles, and preferably in the range of 0.5 to 2 moles. This is because if the content of the component (C) is not less than the lower limit of the above range, the composition is sufficiently cured. On the other hand, if it is not more than the upper limit of the above range, the heat resistance of the cured product is improved. As a result, the reliability of the optical semiconductor device manufactured using this composition is improved.
また、(D)成分は、本組成物の硬化を促進するためのヒドロシリル化反応用触媒であり、白金系触媒、ロジウム系触媒、パラジウム系触媒が例示される。特に、本組成物の硬化を著しく促進できることから、(D)成分は白金系触媒であることが好ましい。この白金系触媒としては、白金微粉末、塩化白金酸、塩化白金酸のアルコール溶液、白金−アルケニルシロキサン錯体、白金−オレフィン錯体、白金−カルボニル錯体が例示され、好ましくは、白金−アルケニルシロキサン錯体である。 Moreover, (D) component is a catalyst for hydrosilylation reaction for accelerating hardening of this composition, and a platinum-type catalyst, a rhodium-type catalyst, and a palladium-type catalyst are illustrated. In particular, the component (D) is preferably a platinum-based catalyst because the curing of the composition can be remarkably accelerated. Examples of the platinum-based catalyst include platinum fine powder, chloroplatinic acid, an alcohol solution of chloroplatinic acid, a platinum-alkenylsiloxane complex, a platinum-olefin complex, and a platinum-carbonyl complex, preferably a platinum-alkenylsiloxane complex. is there.
また、本組成物において、(D)成分の含有量は、本組成物の硬化を促進するために有効な量である。具体的には、(D)成分の含有量は、本組成物の硬化反応を十分に促進できることから、本組成物に対して、質量単位で、(D)成分中の触媒金属が0.01〜500ppmの範囲内となる量であることが好ましく、さらには、0.01〜100ppmの範囲内となる量であることが好ましく、特には、0.01〜50ppmの範囲内となる量であることが好ましい。 In the present composition, the content of the component (D) is an effective amount for accelerating the curing of the present composition. Specifically, (D) The content of the component, because it can sufficiently promote the curing reaction of the composition, relative to the composition, in mass units, the catalytic metal in the component (D) 0.01 The amount is preferably in the range of ˜500 ppm, more preferably in the range of 0.01-100 ppm, and particularly in the range of 0.01-50 ppm. It is preferable.
本組成物には、硬化途上で接触している基材に対する硬化物の接着性を向上させるため、接着付与剤を含有してもよい。この接着付与剤としては、ケイ素原子に結合したアルコキシ基を一分子中に少なくとも1個有する有機ケイ素化合物が好ましい。このアルコキシ基としては、メトキシ基、エトキシ基、プロポキシ基、ブトキシ基、メトキシエトキシ基が例示され、特に、メトキシ基が好ましい。また、この有機ケイ素化合物のケイ素原子に結合するアルコキシ基以外の基としては、アルキル基、アルケニル基、アリール基、アラルキル基、ハロゲン化アルキル基等の置換もしくは非置換の一価炭化水素基;3−グリシドキシプロピル基、4−グリシドキシブチル基等のグリシドキシアルキル基;2−(3,4−エポキシシクロヘキシル)エチル基、3−(3,4−エポキシシクロヘキシル)プロピル基等のエポキシシクロヘキシルアルキル基;4−オキシラニルブチル基、8−オキシラニルオクチル基等のオキシラニルアルキル基等のエポキシ基含有一価有機基;3−メタクリロキシプロピル基等のアクリル基含有一価有機基;水素原子が例示される。この有機ケイ素化合物はケイ素原子結合アルケニル基またはケイ素原子結合水素原子を有することが好ましい。また、各種の基材に対して良好な接着性を付与できることから、この有機ケイ素化合物は一分子中に少なくとも1個のエポキシ基含有一価有機基を有するものであることが好ましい。このような有機ケイ素化合物としては、オルガノシラン化合物、オルガノシロキサンオリゴマー、アルキルシリケートが例示される。このオルガノシロキサンオリゴマーあるいはアルキルシリケートの分子構造としては、直鎖状、一部分枝を有する直鎖状、分枝鎖状、環状、網状が例示され、特に、直鎖状、分枝鎖状、網状であることが好ましい。このような有機ケイ素化合物としては、3−グリシドキシプロピルトリメトキシシラン、2−(3,4−エポキシシクロヘキシル)エチルトリメトキシシラン、3−メタクリロキシプロピルトリメトキシシラン等のシラン化合物;一分子中にケイ素原子結合アルケニル基もしくはケイ素原子結合水素原子、およびケイ素原子結合アルコキシ基をそれぞれ少なくとも1個ずつ有するシロキサン化合物、ケイ素原子結合アルコキシ基を少なくとも1個有するシラン化合物またはシロキサン化合物と一分子中にケイ素原子結合ヒドロキシ基とケイ素原子結合アルケニル基をそれぞれ少なくとも1個ずつ有するシロキサン化合物との混合物、メチルポリシリケート、エチルポリシリケート、エポキシ基含有エチルポリシリケートが例示される。本組成物において、接着付与剤の含有量は限定されないが、上記(A)成分〜(D)成分の合計100質量部に対して、0.01〜10質量部の範囲内であることが好ましい。 In order to improve the adhesiveness of the hardened | cured material with respect to the base material which is contacting in the middle of hardening, you may contain an adhesion imparting agent in this composition. As the adhesion-imparting agent, an organosilicon compound having at least one alkoxy group bonded to a silicon atom in one molecule is preferable. Examples of the alkoxy group include a methoxy group, an ethoxy group, a propoxy group, a butoxy group, and a methoxyethoxy group, and a methoxy group is particularly preferable. The group other than the alkoxy group bonded to the silicon atom of the organosilicon compound includes a substituted or unsubstituted monovalent hydrocarbon group such as an alkyl group, an alkenyl group, an aryl group, an aralkyl group, and a halogenated alkyl group; 3 -Glycidoxyalkyl groups such as glycidoxypropyl group and 4-glycidoxybutyl group; epoxies such as 2- (3,4-epoxycyclohexyl) ethyl group and 3- (3,4-epoxycyclohexyl) propyl group Cyclohexylalkyl group; epoxy group-containing monovalent organic group such as oxiranylalkyl group such as 4-oxiranylbutyl group and 8-oxiranyloctyl group; acrylic group-containing monovalent organic group such as 3-methacryloxypropyl group Group; a hydrogen atom is exemplified. This organosilicon compound preferably has a silicon atom-bonded alkenyl group or a silicon atom-bonded hydrogen atom. Moreover, since it can provide favorable adhesiveness to various types of substrates, the organosilicon compound preferably has at least one epoxy group-containing monovalent organic group in one molecule. Examples of such organosilicon compounds include organosilane compounds, organosiloxane oligomers, and alkyl silicates. Examples of the molecular structure of the organosiloxane oligomer or alkyl silicate include linear, partially branched linear, branched, cyclic, and network, particularly linear, branched, and network. Preferably there is. Examples of such organosilicon compounds include silane compounds such as 3-glycidoxypropyltrimethoxysilane, 2- (3,4-epoxycyclohexyl) ethyltrimethoxysilane, and 3-methacryloxypropyltrimethoxysilane; A siloxane compound having at least one silicon atom-bonded alkenyl group or silicon atom-bonded hydrogen atom and silicon atom-bonded alkoxy group, and a silane compound or siloxane compound having at least one silicon atom-bonded alkoxy group and silicon in one molecule. Examples thereof include a mixture of a siloxane compound having at least one atom-bonded hydroxy group and at least one silicon atom-bonded alkenyl group, methyl polysilicate, ethyl polysilicate, and epoxy group-containing ethyl polysilicate. In the present composition, the content of the adhesion-imparting agent is not limited, but is preferably in the range of 0.01 to 10 parts by mass with respect to 100 parts by mass in total of the components (A) to (D). .
また、本組成物には、その他任意の成分として、2−メチル−3−ブチン−2−オール、3,5−ジメチル−1−ヘキシン−3−オール、2−フェニル−3−ブチン−2−オール等のアルキンアルコール;3−メチル−3−ペンテン−1−イン、3,5−ジメチル−3−ヘキセン−1−イン等のエンイン化合物;1,3,5,7−テトラメチル−1,3,5,7−テトラビニルシクロテトラシロキサン、1,3,5,7−テトラメチル−1,3,5,7−テトラヘキセニルシクロテトラシロキサン、ベンゾトリアゾール等の反応抑制剤を含有してもよい。本組成物において、この反応抑制剤の含有量は限定されないが、上記(A)成分〜(D)成分の合計100質量部に対して、0.0001〜5質量部の範囲内であることが好ましい。 In addition, the present composition includes 2-methyl-3-butyn-2-ol, 3,5-dimethyl-1-hexyn-3-ol, 2-phenyl-3-butyn-2-ol as other optional components. Alkyne alcohols such as all; Enyne compounds such as 3-methyl-3-penten-1-yne and 3,5-dimethyl-3-hexen-1-yne; 1,3,5,7-tetramethyl-1,3 , 5,7-tetravinylcyclotetrasiloxane, 1,3,5,7-tetramethyl-1,3,5,7-tetrahexenylcyclotetrasiloxane, and a reaction inhibitor such as benzotriazole. In the present composition, the content of the reaction inhibitor is not limited, but is within the range of 0.0001 to 5 parts by mass with respect to 100 parts by mass in total of the components (A) to (D). preferable.
また、本組成物には、その他任意の成分として、蛍光材を含有することができる。この蛍光体としては、例えば、発光ダイオード(LED)に広く利用されている、酸化物系蛍光体、酸窒化物系蛍光体、窒化物系蛍光体、硫化物系蛍光体、酸硫化物系蛍光体等からなる黄色、赤色、緑色、青色発光蛍光体が挙げられる。酸化物系蛍光体としては、セリウムイオンを包含するイットリウム、アルミニウム、ガーネット系のYAG系緑色〜黄色発光蛍光体、セリウムイオンを包含するテルビウム、アルミニウム、ガーネット系のTAG系黄色発光蛍光体、および、セリウムやユーロピウムイオンを包含するシリケート系緑色〜黄色発光蛍光体が例示される。酸窒化物蛍光体としては、ユーロピウムイオンを包含するケイ素、アルミニウム、酸素、窒素系のサイアロン系赤色〜緑色発光蛍光体が例示される。窒化物系蛍光体としては、ユーロピウムイオンを包含するカルシウム、ストロンチウム、アルミニウム、ケイ素、窒素系のカズン系赤色発光蛍光体が例示される。硫化物系としては、銅イオンやアルミニウムイオンを包含するZnS系緑色発色蛍光体が例示される。酸硫化物系蛍光体としては、ユーロピウムイオンを包含するY2O2S系赤色発光蛍光体が例示される。これらの蛍光材は、1種もしくは2種以上の混合物を用いてもよい。本組成物において、この蛍光材の含有量は特に限定されないが、本組成物中、0.1〜70質量%の範囲内であり、さらには、1〜20質量%の範囲内であることが好ましい。 In addition, the present composition can contain a fluorescent material as other optional components. Examples of the phosphor include oxide phosphors, oxynitride phosphors, nitride phosphors, sulfide phosphors, and oxysulfide phosphors that are widely used in light emitting diodes (LEDs). Examples thereof include yellow, red, green, and blue light emitting phosphors. Examples of oxide phosphors include yttrium, aluminum, and garnet-based YAG green to yellow light-emitting phosphors containing cerium ions, terbium, aluminum, garnet-based TAG yellow light-emitting phosphors including cerium ions, and Examples include silicate green to yellow light emitting phosphors containing cerium and europium ions. Examples of the oxynitride phosphor include silicon, aluminum, oxygen, and nitrogen-based sialon-based red to green light-emitting phosphors containing europium ions. Examples of nitride-based phosphors include calcium, strontium, aluminum, silicon, and nitrogen-based casoon-based red light-emitting phosphors containing europium ions. Examples of the sulfide type include ZnS type green coloring phosphors including copper ions and aluminum ions. Examples of oxysulfide phosphors include Y 2 O 2 S red light-emitting phosphors containing europium ions. These fluorescent materials may be used singly or as a mixture of two or more. In the present composition, the content of the fluorescent material is not particularly limited, but in the present composition is in the range of 0.1 to 70% by mass, and further in the range of 1 to 20% by mass. preferable.
また、本組成物には、本発明の目的を損なわない限り、その他任意の成分として、シリカ、ガラス、アルミナ、酸化亜鉛等の無機質充填剤;ポリメタクリレート樹脂等の有機樹脂微粉末;耐熱剤、染料、顔料、難燃性付与剤、溶剤等を含有してもよい。 Further, in the present composition, as long as the object of the present invention is not impaired, as other optional components, inorganic fillers such as silica, glass, alumina and zinc oxide; fine organic resin powders such as polymethacrylate resin; You may contain dye, a pigment, a flame-retarding agent, a solvent, etc.
本組成物は室温もしくは加熱により硬化が進行するが、迅速に硬化させるためには加熱することが好ましい。この加熱温度としては、50〜200℃の範囲内であることが好ましい。 The composition is cured at room temperature or by heating, but is preferably heated in order to cure quickly. The heating temperature is preferably in the range of 50 to 200 ° C.
次に、本発明の硬化物について詳細に説明する。
本発明の硬化物は、上記の硬化性シリコーン組成物を硬化してなることを特徴とする。硬化物の形状は特に限定されず、例えば、シート状、フィルム状が挙げられる。硬化物は、これを単体で取り扱うこともできるが、光半導体素子等を被覆もしくは封止した状態で取り扱うことも可能である。
Next, the cured product of the present invention will be described in detail.
The cured product of the present invention is obtained by curing the above curable silicone composition. The shape of the cured product is not particularly limited, and examples thereof include a sheet shape and a film shape. The cured product can be handled alone, but can also be handled in a state where the optical semiconductor element or the like is covered or sealed.
次に、本発明の光半導体装置について詳細に説明する。
本発明の光半導体装置は、上記の硬化性シリコーン組成物の硬化物により光半導体素子を封止してなることを特徴とする。このような本発明の光半導体装置としては、発光ダイオード(LED)、フォトカプラー、CCDが例示される。また、光半導体素子としては、発光ダイオード(LED)チップ、固体撮像素子が例示される。
Next, the optical semiconductor device of the present invention will be described in detail.
The optical semiconductor device of the present invention is characterized in that an optical semiconductor element is sealed with a cured product of the above curable silicone composition. Examples of such an optical semiconductor device of the present invention include a light emitting diode (LED), a photocoupler, and a CCD. Examples of the optical semiconductor element include a light emitting diode (LED) chip and a solid-state imaging element.
本発明の光半導体装置の一例である単体の表面実装型LEDの断面図を図1に示した。図1で示されるLEDは、LEDチップ1がリードフレーム2上にダイボンドされ、このLEDチップ1とリードフレーム3とがボンディングワイヤ4によりワイヤボンディングされている。このLEDチップ1の周囲には枠材5が設けられており、この枠材5の内側のLEDチップ1が、本発明の硬化性シリコーン組成物の硬化物6により封止されている。 A cross-sectional view of a single surface-mounted LED as an example of the optical semiconductor device of the present invention is shown in FIG. In the LED shown in FIG. 1, an LED chip 1 is die-bonded on a lead frame 2, and the LED chip 1 and the lead frame 3 are wire-bonded by a bonding wire 4. A frame member 5 is provided around the LED chip 1, and the LED chip 1 inside the frame member 5 is sealed with a cured product 6 of the curable silicone composition of the present invention.
図1で示される表面実装型LEDを製造する方法としては、LEDチップ1をリードフレーム2にダイボンドし、このLEDチップ1とリードフレーム3とを金製のボンディングワイヤ4によりワイヤボンドし、次いで、LEDチップ1の周囲に設けられた枠材5の内側に本発明の硬化性シリコーン組成物を充填した後、50〜200℃で加熱することにより硬化させる方法が例示される。 As a method of manufacturing the surface mount type LED shown in FIG. 1, the LED chip 1 is die-bonded to the lead frame 2, the LED chip 1 and the lead frame 3 are wire-bonded by a gold bonding wire 4, and then The method of making it harden | cure by heating at 50-200 degreeC after filling the inside of the frame material 5 provided in the circumference | surroundings of the LED chip 1 with the curable silicone composition of this invention is illustrated.
本発明の硬化性シリコーン組成物、その硬化物、および光半導体装置を実施例により詳細に説明する。なお、粘度は25℃における値である。また、硬化性シリコーン組成物、その硬化物、および光半導体装置の特性を次のようにして測定した。 The curable silicone composition of the present invention, the cured product thereof, and the optical semiconductor device will be described in detail with reference to examples. The viscosity is a value at 25 ° C. The characteristics of the curable silicone composition, the cured product, and the optical semiconductor device were measured as follows.
[硬化性の評価]
硬化性シリコーン組成物の硬化速度を、示差走査熱量計(SIIナノテクノロジー社製のDSC7000)を用いて、加熱速度10℃/分で測定したときの発熱ピーク温度(℃)、およびキュラストメータ(ALPHA TECHNOLOGIES社製のRHEOMETER MDR2000)を用いて、測定温度150℃、ダイの振れ角1°で測定したときの、トルク値が1dNmに達するまでの時間(秒)により評価した。
[Evaluation of curability]
Exothermic peak temperature (° C.) when measured with a differential scanning calorimeter (DSC7000 manufactured by SII Nanotechnology) at a heating rate of 10 ° C./min, and a curast meter (the curing rate of the curable silicone composition) Evaluation was performed based on the time (seconds) until the torque value reached 1 dNm when measured at a measurement temperature of 150 ° C. and a die swing angle of 1 ° using ALPHA TECHNOLOGIES (RHEOMETER MDR2000).
[硬化物の透湿度]
硬化性シリコーン組成物をプレスを用いて150℃、2時間で硬化させ、厚み1mmの硬化フィルムを作製した。その硬化フィルムの水蒸気透過率をJIS Z0208のカップ法に準拠して、温度40℃、相対湿度90%の条件で測定した。
[Water permeability of cured product]
The curable silicone composition was cured at 150 ° C. for 2 hours using a press to produce a cured film having a thickness of 1 mm. The water vapor transmission rate of the cured film was measured under the conditions of a temperature of 40 ° C. and a relative humidity of 90% according to the cup method of JIS Z0208.
[光半導体装置の信頼性]
硬化性シリコーン組成物を用いて、150℃、2時間加熱して、図1で示される光半導体装置を作製した。この光半導体装置を、50℃、相対湿度75%、硫化水素ガス濃度20ppmの条件下で24時間暴露試験した。光半導体装置の暴露試験前後での発光効率の変化を測定し、光半導体装置の信頼性を評価した。
[Reliability of optical semiconductor devices]
Using the curable silicone composition, the optical semiconductor device shown in FIG. 1 was produced by heating at 150 ° C. for 2 hours. This optical semiconductor device was subjected to an exposure test under the conditions of 50 ° C., relative humidity of 75%, and hydrogen sulfide gas concentration of 20 ppm for 24 hours. The change in luminous efficiency before and after the exposure test of the optical semiconductor device was measured to evaluate the reliability of the optical semiconductor device.
[合成例1]
反応容器に、フェニルトリメトキシシラン 400g(2.02mol)、および1,3−ジビニル−1,3−ジフェニルジメチルジシロキサン 93.5g(0.30mol)を投入し、予め混合した後、トリフルオロメタンスルホン酸 1.74g(11.6mmol)を投入し、撹拌下、水 110g(6.1mol)を投入し、2時間加熱還流を行った。その後、85℃になるまで加熱常圧留去を行った。次いで、トルエン 89gおよび水酸化カリウム 1.18g(21.1mmol)を投入し、反応温度が120℃になるまで加熱常圧留去を行い、この温度で6時間反応させた。室温まで冷却し、酢酸 0.68g(11.4mmol)を投入し、中和反応を行った。生成した塩を濾別した後、得られた透明な溶液から低沸点物を加熱減圧除去し、無色透明なガム状粘稠液体 347g(収率:98%)を得た。
[Synthesis Example 1]
A reaction vessel was charged with 400 g (2.02 mol) of phenyltrimethoxysilane and 93.5 g (0.30 mol) of 1,3-divinyl-1,3-diphenyldimethyldisiloxane, mixed in advance, and then trifluoromethanesulfone. 1.74 g (11.6 mmol) of acid was added, and 110 g (6.1 mol) of water was added with stirring, followed by heating under reflux for 2 hours. Then, heating and normal pressure distillation were performed until it became 85 degreeC. Next, 89 g of toluene and 1.18 g (21.1 mmol) of potassium hydroxide were added, and atmospheric pressure distillation was performed until the reaction temperature reached 120 ° C., and the reaction was performed at this temperature for 6 hours. After cooling to room temperature, 0.68 g (11.4 mmol) of acetic acid was added to carry out a neutralization reaction. After the produced salt was filtered off, low-boiling substances were removed by heating under reduced pressure from the obtained transparent solution to obtain 347 g (yield: 98%) of a colorless transparent gum-like viscous liquid.
核磁気共鳴分析の結果、この液体は、平均単位式:
[(CH3)(C6H5)CH2=CHSiO1/2]0.23(C6H5SiO3/2)0.77
で表されるオルガノポリシロキサンであることがわかった。このオルガノポリシロキサンの質量平均分子量(Mw)は1617であり、分散度(Mw/Mn)は1.16であった。
As a result of nuclear magnetic resonance analysis, this liquid has an average unit formula:
[(CH 3 ) (C 6 H 5 ) CH 2 ═CHSiO 1/2 ] 0.23 (C 6 H 5 SiO 3/2 ) 0.77
It was found that the organopolysiloxane represented by This organopolysiloxane had a mass average molecular weight (Mw) of 1617 and a dispersity (Mw / Mn) of 1.16.
[実施例1]
合成例1で調製したオルガノポリシロキサン 77.9質量部、式:
H(CH3)2SiO(C6H5)2SiOSi(CH3)2H
で表されるオルガノトリシロキサン 21.9質量部(上記オルガノポリシロキサン中のビニル基1モルに対し、本成分中のケイ素原子結合水素原子が1モルとなる量)、および白金−1,3−ジビニル−1,1,3,3−テトラメチルジシロキサン錯体の1,3,5,7−テトラメチル−1,3,5,7−テトラビニルシクロテトラシロキサン溶液(白金を0.1質量%含有) 0.2質量部を混合して、粘度8,300mPa・sの硬化性シリコーン組成物を調製した。
[Example 1]
77.9 parts by mass of organopolysiloxane prepared in Synthesis Example 1, formula:
H (CH 3) 2 SiO ( C 6 H 5) 2 SiOSi (CH 3) 2 H
Organotrisiloxane 21.9 parts by weight, expressed in (to vinyl groups 1 mol in the organopolysiloxane, the amount of silicon-bonded hydrogen atoms in this component is 1 mol) and platinum 1,3 1,3,5,7-tetramethyl-1,3,5,7-tetravinylcyclotetrasiloxane solution of divinyl-1,1,3,3-tetramethyldisiloxane complex (containing 0.1% by mass of platinum) ) 0.2 parts by mass was mixed to prepare a curable silicone composition having a viscosity of 8,300 mPa · s.
この硬化性シリコーン組成物のトルク値1dNmに達するまでの時間は36秒であり、DSCの発熱ピーク温度は122℃であった。また、硬化物の透湿度は6.7g/m2・24hであった。 The time to reach a torque value of 1 dNm of this curable silicone composition was 36 seconds, and the exothermic peak temperature of DSC was 122 ° C. The moisture permeability of the cured product was 6.7 g / m 2 · 24 h.
[実施例2]
合成例1で調製したオルガノポリシロキサン 64.7質量部、粘度3,000mPa・sの分子鎖両末端ジメチルビニルシロキシ基封鎖メチルフェニルポリシロキサン 15.2質量部、式:
H(CH3)2SiO(C6H5)2SiOSi(CH3)2H
で表されるオルガノトリシロキサン 20.0質量部(上記オルガノポリシロキサン中と上記メチルフェニルポリシロキサン中のビニル基の合計1モルに対し、本成分中のケイ素原子結合水素原子が1モルとなる量)、および白金−1,3−ジビニル−1,1,3,3−テトラメチルジシロキサン錯体の1,3,5,7−テトラメチル−1,3,5,7−テトラビニルシクロテトラシロキサン溶液(白金を0.1質量%含有) 0.2質量部を混合して、粘度4,300mPa・sの硬化性シリコーン組成物を調製した。
[Example 2]
64.7 parts by mass of organopolysiloxane prepared in Synthesis Example 1, 15.2 parts by mass of methylphenylpolysiloxane blocked with dimethylvinylsiloxy group-blocked dimethylvinylsiloxy group having a viscosity of 3,000 mPa · s, formula:
H (CH 3) 2 SiO ( C 6 H 5) 2 SiOSi (CH 3) 2 H
20.0 parts by mass of an organotrisiloxane represented by the formula (amount of silicon atom-bonded hydrogen atoms in this component to be 1 mol with respect to a total of 1 mol of vinyl groups in the organopolysiloxane and methylphenylpolysiloxane) ), And 1,3,5,7-tetramethyl-1,3,5,7-tetravinylcyclotetrasiloxane solution of platinum-1,3-divinyl-1,1,3,3-tetramethyldisiloxane complex (Contains 0.1% by mass of platinum) 0.2 parts by mass was mixed to prepare a curable silicone composition having a viscosity of 4,300 mPa · s.
この硬化性シリコーン組成物のトルク値1dNmに達するまでの時間は44秒であり、DSCの発熱ピーク温度は120℃であった。また、硬化物の透湿度は7.8g/m2・24hであった。 The time to reach a torque value of 1 dNm of this curable silicone composition was 44 seconds, and the exothermic peak temperature of DSC was 120 ° C. The moisture permeability of the cured product was 7.8 g / m 2 · 24 h.
[実施例3]
合成例1で調製したオルガノポリシロキサン 76.3質量部、式:
H(CH3)2SiO(C6H5)2SiOSi(CH3)2H
で表されるオルガノトリシロキサン 20.0質量部(上記オルガノポリシロキサン中のビニル基1モルに対し、本成分中のケイ素原子結合水素原子が0.9モルとなる量)、平均式:
H(CH3)2SiO[(C6H5) 2 SiO] 2.5 Si(CH3)2H
で表されるオルガノポリシロキサン 3.5質量部(上記オルガノポリシロキサン中のビニル基1モルに対し、本成分中のケイ素原子結合水素原子が0.1モルとなる量)、および白金−1,3−ジビニル−1,1,3,3−テトラメチルジシロキサン錯体の1,3,5,7−テトラメチル−1,3,5,7−テトラビニルシクロテトラシロキサン溶液(白金を0.1質量%含有) 0.2質量部を混合して、粘度11,500mPa・sの硬化性シリコーン組成物を調製した。
[Example 3]
76.3 parts by mass of organopolysiloxane prepared in Synthesis Example 1
H (CH 3) 2 SiO ( C 6 H 5) 2 SiOSi (CH 3) 2 H
20.0 parts by mass of the organotrisiloxane represented by the formula (amount in which 0.9 mol of silicon-bonded hydrogen atoms in this component is 1 mol of 1 mol of vinyl groups in the organopolysiloxane), average formula:
H (CH 3 ) 2 SiO [ (C 6 H 5 ) 2 SiO ] 2.5 Si (CH 3 ) 2 H
3.5 parts by mass of the organopolysiloxane represented by the formula (amount in which the silicon atom-bonded hydrogen atom in this component is 0.1 mol with respect to 1 mol of the vinyl group in the organopolysiloxane), and platinum-1, 1,3,5,7-tetramethyl-1,3,5,7-tetravinylcyclotetrasiloxane solution of 3-divinyl-1,1,3,3-tetramethyldisiloxane complex (0.1 mass of platinum) 0.2% by mass was mixed to prepare a curable silicone composition having a viscosity of 11,500 mPa · s.
この硬化性シリコーン組成物のトルク値1dNmに達するまでの時間は56秒であり、DSCの発熱ピーク温度は122℃であった。また、硬化物の透湿度は6.5g/m2・24hであった。 The time to reach a torque value of 1 dNm of this curable silicone composition was 56 seconds, and the exothermic peak temperature of DSC was 122 ° C. The moisture permeability of the cured product was 6.5 g / m 2 · 24 h.
[実施例4]
合成例1で調製したオルガノポリシロキサン 77.8質量部、式:
H(CH3)2SiO(C6H5)2SiOSi(CH3)2H
で表されるオルガノポリシロキサン 18.7質量部(上記オルガノポリシロキサン中のビニル基1モルに対し、本成分中のケイ素原子結合水素原子が0.72モルとなる量)、平均単位式:
(C6H5SiO3/2)0.4[(CH3)2HSiO1/2)0.6
で表されるオルガノトリシロキサン 3.3質量部(上記オルガノポリシロキサン中のビニル基1モルに対し、本成分中のケイ素原子結合水素原子が0.28モルとなる量)、および白金−1,3−ジビニル−1,1,3,3−テトラメチルジシロキサン錯体の1,3,5,7−テトラメチル−1,3,5,7−テトラビニルシクロテトラシロキサン溶液(白金を0.1質量%含有) 0.2質量部を混合して、粘度10,600mPa・sの硬化性シリコーン組成物を調製した。
[Example 4]
77.8 parts by mass of the organopolysiloxane prepared in Synthesis Example 1 and the formula:
H (CH 3) 2 SiO ( C 6 H 5) 2 SiOSi (CH 3) 2 H
18.7 parts by mass of an organopolysiloxane represented by the formula (amount in which the silicon atom-bonded hydrogen atom in this component is 0.72 mol relative to 1 mol of the vinyl group in the organopolysiloxane), the average unit formula:
(C 6 H 5 SiO 3/2 ) 0.4 [(CH 3 ) 2 HSiO 1/2 ) 0.6
3.3 parts by mass of an organotrisiloxane represented by the formula (amount of silicon atom-bonded hydrogen atoms in this component to be 0.28 mol with respect to 1 mol of vinyl groups in the organopolysiloxane), and platinum-1, 1,3,5,7-tetramethyl-1,3,5,7-tetravinylcyclotetrasiloxane solution of 3-divinyl-1,1,3,3-tetramethyldisiloxane complex (0.1 mass of platinum) 0.2% by mass was mixed to prepare a curable silicone composition having a viscosity of 10,600 mPa · s.
この硬化性シリコーン組成物のトルク値1dNmに達するまでの時間は16秒であり、DSCの発熱ピーク温度は110℃であった。また、硬化物の透湿度は6.6g/m2・24hであった。 The time to reach a torque value of 1 dNm of this curable silicone composition was 16 seconds, and the exothermic peak temperature of DSC was 110 ° C. The moisture permeability of the cured product was 6.6 g / m 2 · 24 h.
[比較例1]
合成例1で調製したオルガノポリシロキサン 65.2質量部、平均式:
H(CH3)2SiO[(C6H5) 2 SiO] 2.5 Si(CH3)2H
で表されるオルガノポリシロキサン 34.8質量部(上記オルガノポリシロキサン中のビニル基1モルに対し、本成分中のケイ素原子結合水素原子が1モルとなる量)、および白金−1,3−ジビニル−1,1,3,3−テトラメチルジシロキサン錯体の1,3,5,7−テトラメチル−1,3,5,7−テトラビニルシクロテトラシロキサン溶液(白金を0.1質量%含有) 0.2質量部を混合して、粘度28,500mPa・sの硬化性シリコーン組成物を調製した。
[Comparative Example 1]
Organopolysiloxane prepared in Synthesis Example 1 65.2 parts by mass, average formula:
H (CH 3 ) 2 SiO [ (C 6 H 5 ) 2 SiO ] 2.5 Si (CH 3 ) 2 H
34.8 parts by mass of an organopolysiloxane represented by the formula (amount in which 1 mol of silicon-bonded hydrogen atoms in this component is 1 mol with respect to 1 mol of vinyl groups in the organopolysiloxane), and platinum-1,3- 1,3,5,7-tetramethyl-1,3,5,7-tetravinylcyclotetrasiloxane solution of divinyl-1,1,3,3-tetramethyldisiloxane complex (containing 0.1% by mass of platinum) ) 0.2 part by mass was mixed to prepare a curable silicone composition having a viscosity of 28,500 mPa · s.
この硬化性シリコーン組成物のトルク値1dNmに達するまでの時間は166秒であり、DSCの発熱ピーク温度は133℃であった。また、硬化物の透湿度は6.3g/m2・24hであった。 The time to reach a torque value of 1 dNm of this curable silicone composition was 166 seconds, and the exothermic peak temperature of DSC was 133 ° C. The moisture permeability of the cured product was 6.3 g / m 2 · 24 h.
[比較例2]
合成例1で調製したオルガノポリシロキサン 53.6質量部、粘度3,000mPa・sの分子鎖両末端ジメチルビニルシロキシ基封鎖メチルフェニルポリシロキサン 15.2質量部、平均式:
H(CH3)2SiO[(C6H5) 2 SiO] 2.5 Si(CH3)2H
で表されるオルガノポリシロキサン 31.2質量部(上記オルガノポリシロキサン中と上記メチルフェニルポリシロキサン中のビニル基の合計1モルに対し、本成分中のケイ素原子結合水素原子が1モルとなる量)、および白金−1,3−ジビニル−1,1,3,3−テトラメチルジシロキサン錯体の1,3,5,7−テトラメチル−1,3,5,7−テトラビニルシクロテトラシロキサン溶液(白金を0.1質量%含有) 0.2質量部を混合して、粘度12,300mPa・sの硬化性シリコーン組成物を調製した。
[Comparative Example 2]
53.6 parts by mass of the organopolysiloxane prepared in Synthesis Example 1, 15.2 parts by mass of methylphenylpolysiloxane blocked with dimethylvinylsiloxy group-blocked dimethylvinylsiloxy group having a viscosity of 3,000 mPa · s, average formula:
H (CH 3 ) 2 SiO [ (C 6 H 5 ) 2 SiO ] 2.5 Si (CH 3 ) 2 H
31.2 parts by mass of an organopolysiloxane represented by the formula (amount of silicon-bonded hydrogen atoms in this component to be 1 mol with respect to a total of 1 mol of vinyl groups in the organopolysiloxane and the methylphenylpolysiloxane) ), And 1,3,5,7-tetramethyl-1,3,5,7-tetravinylcyclotetrasiloxane solution of platinum-1,3-divinyl-1,1,3,3-tetramethyldisiloxane complex (Contains 0.1% by mass of platinum) 0.2 parts by mass was mixed to prepare a curable silicone composition having a viscosity of 12,300 mPa · s.
この硬化性シリコーン組成物のトルク値1dNmに達するまでの時間は211秒であり、DSCの発熱ピーク温度は130℃であった。また、硬化物の透湿度は7.4g/m2・24hであった。 The time to reach a torque value of 1 dNm of this curable silicone composition was 211 seconds, and the exothermic peak temperature of DSC was 130 ° C. The moisture permeability of the cured product was 7.4 g / m 2 · 24 h.
実施例1と比較例1との対比、および実施例2と比較例2の対比より、架橋剤として、式:
H(CH3)2SiO(C6H5)2SiOSi(CH3)2H
で表されるオルガノトリシロキサンを用いると、硬化性シリコーン組成物の粘度が低下し、また、その硬化速度が速くなることがわかった。
From the comparison between Example 1 and Comparative Example 1 and the comparison between Example 2 and Comparative Example 2, the formula:
H (CH 3) 2 SiO ( C 6 H 5) 2 SiOSi (CH 3) 2 H
It was found that the viscosity of the curable silicone composition was lowered and the curing rate was increased.
[実施例5]
実施例1で調製した硬化性シリコーン組成物を用いて光半導体装置を作製した。この光半導体装置の信頼性を評価したところ、暴露試験前後での光半導体装置の発光効率の変化は観察されなかった。
[Example 5]
An optical semiconductor device was produced using the curable silicone composition prepared in Example 1. When the reliability of this optical semiconductor device was evaluated, no change in the light emission efficiency of the optical semiconductor device before and after the exposure test was observed.
本発明の硬化性シリコーン組成物は、電気・電子用の接着剤、ポッティング剤、保護剤、コーティング剤、アンダーフィル剤として使用することができ、特に、取扱作業性が優れ、高い反応性を有し、ガス透過性の低い硬化物を形成できるので、発光ダイオード(LED)等の光半導体装置における光半導体素子の封止材あるいは保護コーティング材として好適である。 The curable silicone composition of the present invention can be used as an electric / electronic adhesive, potting agent, protective agent, coating agent, and underfill agent, and has particularly excellent handling workability and high reactivity. In addition, since a cured product having low gas permeability can be formed, it is suitable as a sealing material or protective coating material for an optical semiconductor element in an optical semiconductor device such as a light emitting diode (LED).
1 光半導体素子
2 リードフレーム
3 リードフレーム
4 ボンディングワイヤ
5 枠材
6 硬化性シリコーン組成物の硬化物
DESCRIPTION OF SYMBOLS 1 Optical semiconductor element 2 Lead frame 3 Lead frame 4 Bonding wire 5 Frame material 6 Hardened | cured material of curable silicone composition
Claims (4)
(R1R2R3SiO1/2)a(R4 2SiO2/2)b(R2SiO3/2)c
(式中、R1は炭素数1〜12のアルキル基であり、R2は同じかまたは異なる、炭素数6〜20のアリール基もしくは炭素数7〜20のアラルキル基であり、R3は炭素数2〜12のアルケニル基であり、R4は同じかまたは異なる、炭素数1〜12のアルキル基、炭素数2〜12のアルケニル基、もしくはフェニル基であり、a、b、およびcは、それぞれ、0.01≦a≦0.5、0≦b≦0.7、0.1≦c<0.9、かつa+b+c=1を満たす数である。)
で表され、一分子中に少なくとも2個のアルケニル基を有するオルガノポリシロキサン、
(B)一分子中に少なくとも2個のアルケニル基を有し、ケイ素原子結合水素原子を有さない直鎖状オルガノポリシロキサン(本組成物に対して、0〜70質量%)、
(C)一分子中に少なくとも2個のケイ素原子結合水素原子を有するオルガノポリシロキサンであって、式:
H(CH3)2SiO(C6H5)2SiOSi(CH3)2H
で表されるオルガノトリシロキサンを本成分中、少なくとも80質量%有するオルガノポリシロキサン{(A)成分中と(B)成分中のアルケニル基の合計1モルに対して、本成分中のケイ素原子結合水素原子が0.1〜5モルとなる量}、および
(D)有効量のヒドロシリル化反応用触媒
から少なくともなる硬化性シリコーン組成物。 (A) Average unit formula:
(R 1 R 2 R 3 SiO 1/2 ) a (R 4 2 SiO 2/2 ) b (R 2 SiO 3/2 ) c
Wherein R 1 is an alkyl group having 1 to 12 carbon atoms, R 2 is the same or different, an aryl group having 6 to 20 carbon atoms or an aralkyl group having 7 to 20 carbon atoms, and R 3 is carbon. An alkenyl group having 2 to 12 carbon atoms, R 4 is the same or different, an alkyl group having 1 to 12 carbon atoms, an alkenyl group having 2 to 12 carbon atoms, or a phenyl group, and a, b, and c are (The numbers satisfy 0.01 ≦ a ≦ 0.5, 0 ≦ b ≦ 0.7, 0.1 ≦ c <0.9, and a + b + c = 1, respectively.)
An organopolysiloxane having at least two alkenyl groups in one molecule,
(B) a linear organopolysiloxane having at least two alkenyl groups in one molecule and having no silicon-bonded hydrogen atoms (0 to 70% by mass with respect to the present composition),
(C) an organopolysiloxane having at least two silicon-bonded hydrogen atoms in one molecule having the formula:
H (CH 3) 2 SiO ( C 6 H 5) 2 SiOSi (CH 3) 2 H
In this component, the organopolysiloxane having at least 80% by mass of the organotrisiloxane {the silicon atom bond in this component with respect to a total of 1 mole of alkenyl groups in component (A) and component (B) A curable silicone composition comprising at least an amount of 0.1 to 5 moles of hydrogen atoms, and (D) an effective amount of a catalyst for hydrosilylation reaction.
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